公开(公告)号：US20230251739A1

公开(公告)日：2023-08-10

申请号：US18112642

申请日：2023-02-22

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

CPC classification number: G06F3/04166 ,  G09G3/3225 ,  G09G2310/08

Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and an OLED touch-and-display device. The method includes: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

公开(公告)号：US20200342801A1

公开(公告)日：2020-10-29

申请号：US16395247

申请日：2019-04-26

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yen-Tao Liao ,  Hung-Hsiang Chen ,  Jen-Ta Yang ,  Yi-Wei Lin ,  Huang-Chin Tang

IPC: G09G3/20

Abstract: The present invention discloses a driving method for a source driver, for driving a source line of a display panel. The driving method includes the steps of: driving the source line with a first voltage or a second voltage smaller than the first voltage in a first driving cycle; driving the source line with the first voltage in a second driving cycle next to the first driving cycle when the source line is driven with the first voltage in the first driving cycle; and driving the source line with an overdrive voltage in the second driving cycle when the source line is driven with the second voltage in the first driving cycle. The first voltage is a normal high voltage of the display panel, and the overdrive voltage is greater than the normal high voltage.

公开(公告)号：US11829549B2

公开(公告)日：2023-11-28

申请号：US17824884

申请日：2022-05-25

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Hsiang Chen ,  Wei-Kai Chen ,  Huang-Chin Tang

IPC: G09G5/00 ,  G06F3/041 ,  G06F3/0354 ,  G09G3/36

CPC classification number: G06F3/04162 ,  G06F3/03545 ,  G06F3/0412 ,  G09G3/3648 ,  G09G2320/0233

Abstract: A method of controlling a stylus pen of a touch panel includes steps of: outputting an uplink control signal to a sensing electrode of the touch panel for controlling the stylus pen in an uplink control period; and outputting a direct-current (DC) voltage to a gate line of the touch panel in the uplink control period.

公开(公告)号：US20230074418A1

公开(公告)日：2023-03-09

申请号：US17824884

申请日：2022-05-25

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Hsiang Chen ,  Wei-Kai Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G06F3/0354

Abstract: A method of controlling a stylus pen of a touch panel includes steps of: outputting an uplink control signal to a sensing electrode of the touch panel for controlling the stylus pen in an uplink control period; and outputting a direct-current (DC) voltage to a gate line of the touch panel in the uplink control period.

公开(公告)号：US11024215B2

公开(公告)日：2021-06-01

申请号：US16524270

申请日：2019-07-29

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Tso-Hua Chien ,  Huang-Chin Tang

IPC: G09G3/20

Abstract: A dual-gate display panel, a control circuit, and a display device are provided. The display device includes the dual-gate display panel and the control circuit. The display panel includes a first subpixel, a second subpixel, a third subpixel, and a fourth subpixel, which are sequentially arranged along a first direction. The first subpixel and the third subpixel are electrically connected to a first source line. The second subpixel and the fourth subpixel are electrically connected to a second source line.

公开(公告)号：US10984697B2

公开(公告)日：2021-04-20

申请号：US16748781

申请日：2020-01-21

Applicant: Novatek Microelectronics Corp.

Inventor： Tso-Hua Chien ,  Hung-Hsiang Chen ,  Huang-Chin Tang

IPC: G09G3/20

Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.

公开(公告)号：US12105909B2

公开(公告)日：2024-10-01

申请号：US18112642

申请日：2023-02-22

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

CPC classification number: G06F3/04166 ,  G09G3/3225 ,  G09G2310/08

Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and an OLED touch-and-display device. The method includes: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

公开(公告)号：US11609657B2

公开(公告)日：2023-03-21

申请号：US17313796

申请日：2021-05-06

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and an OLED touch-and-display device. The method includes: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

公开(公告)号：US11594200B2

公开(公告)日：2023-02-28

申请号：US16748832

申请日：2020-01-22

Applicant: Novatek Microelectronics Corp.

Inventor： Hung-Hsiang Chen ,  Tso-Hua Chien ,  Huang-Chin Tang

IPC: G09G5/18 ,  G09G3/36

Abstract: This disclosure relates to techniques for a driving apparatus including a reordering circuit and a source driving circuit. The reordering circuit can be configured to reorder a plurality of sub-pixel data of an input data string to generate a reordered data string so as to reduce a color switching number associated with a target data line. The source driving circuit can be coupled to the reordering circuit to receive the reordered data string. The source driving circuit can be configured to drive the target data line of a display panel according to the reordered data string.

公开(公告)号：US20200327858A1

公开(公告)日：2020-10-15

申请号：US16869658

申请日：2020-05-08

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Tso-Hua Chien ,  Huang-Chin Tang

IPC: G09G3/36

Abstract: A gate on array circuit for a display device using dual-gate architecture is disclosed. The GOA circuit comprises circuitry configured to, for a first display line of the display device, generate a first gate driving signal and a second gate driving signal for driving a first gate line and a second gate line of the first display line respectively. A first time period when the first gate driving signal is in an activation state for activating the first gate line of the first display line does not overlap with a first time period when the second gate driving signal is in the activation state for activating the second gate line of the first display line.